Nitre Bluing

Nitre Bluing is a metal finishing process that uses a high temperature potassium nitrate bath. Nitre Bluing can create an array of beautiful colors from Deep Blues and Purples, to a pale yellow finish as seen on original Luger pistols. Color is dependent on the temperature of the salt bath and the level of metal preparation. Nitre blue is not as wear resistant as conventional hot salt bluing. It has typically been used on accent pieces that do not see heavy handling use.

A highly polished deep blue is the default finish and color of our Nitre Bluing process. If you would like a color other than blue let us know when you request a quote.